From 3e2cd91ab92665148616a80dc0745c499d2746a7 Mon Sep 17 00:00:00 2001
From: Zefan Li <lizefan@huawei.com>
Date: Sat, 20 Sep 2014 14:35:43 +0800
Subject: [PATCH] cgroup: fix missing unlock in cgroup_release_agent()

The patch 971ff4935538: "cgroup: use a per-cgroup work for release
agent" from Sep 18, 2014, leads to the following static checker
warning:

	kernel/cgroup.c:5310 cgroup_release_agent()
	warn: 'mutex:&cgroup_mutex' is sometimes locked here and sometimes unlocked.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zefan Li <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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